Artisan IMG > Klaviyo (klaviyo) (1bcc865a-4052-4a24-b59c-9d8f8f8221a7)


Klaviyo is a growth marketing platform created for online businesses.


Klaviyo is a growth marketing platform created for online businesses — featuring powerful marketing automation and a revenue-driving email platform.


Authentication with the Klaviyo API requires an API key.

To obtain an API key head over to your Klaviyo account homepage and click the 'settings' dropdown and select the 'API Key' option. Click 'Create API Key' button to generate the API key which you can then plug into the authentication modal that pops open once you select 'New Authentication' in the workflow builder:

Update person operation

  • The update operation utilises Klaviyo's Profile API to update common profile properties such as email and first name whilst also allowing you to create new custom properties e.g. "favourite sports team".

  • The users unique ID is needed to use this operation. This can be retrieved via the 'Check list subscriptions' operation (you will need to provide and email identifier as an input).

  • The screen shot below highlight these steps along with the creation of a custom property "favourite sports team".

Note: the first step 'List lists' will retrieve all lists in an account and subsequently the List ID parameter to pass to 'Check list subscriptions'.